Nano-Polyoxotungstate [Cu₂₀P₈W₄₈] Immobilized on Magnetic Nanoparticles as an Excellent Heterogeneous Catalyst Nanoreactors for Green Reduction of Nitrophenol Compounds

Figure 11

UV-Vis spectrum of an aqueous solution of 2,4,6-TNP in the presence of 200 mM NaBH₄ and 0.01 g of [Fe₃O₄@SiO₂-NH₂-Cu₂₀P₈W₄₈].